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CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (Parenthetical) - HKD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME      
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax $ 47,845 $ 171,809 $ 141,341